DIPTERA. P 95 
of the borders of the veins; wing-ribs and veins black ; poisers yellow. 
Length of the body 7 lines ; of the wings 13 lines. 
Dasyrocon vinens, Fem. 
Piceus, flavescens, thorace vittis duabus flavis ornato, abdomine Serrugineo 
bast piceo, ventre maculis piceis, antennis ferrugineis basi Sulvis, pe- 
dibus ferrugineis tibiis basi fulvis, alis sublimpidis ad costam sub- 
Sulvis. 
Head adorned with a whitish yellow covering, beset behind the eyes 
with a row of black bristles; crown pitchy ; epistoma beset with two pale 
yellow bristles and with a few pale yellow hairs: sucker and palpi black ; 
palpi beset with black bristles: eyes bronzed; fore part flat, composed of 
large facets: feelers pale tawny ; first and second joints beset with short 
black bristles ; third ferruginous, pale tawny at the base, spindle-shaped, 
broader and a, little longer than the first and second joints; chest and 
breast pitchy, tinged with pale buff ; the former darker than the latter, and 
adorned with a yellow stripe along each side: abdomen Serruginous, pitchy 
here and there beneath and at the base, a little narrower than the chest and 
about twice its length, linear from the base to the hind border of the third 
segment, spindle-shaped from thence to the tip: legs ferruginous, clothed 
with short ferruginous hairs, armed with ferruginous spines ; shanks tawny 
towards the base; claws black, ferruginous at the base; foot-cushions 
tawny: wings nearly colourless, with a slight tawny tinge beneath the 
fore border; wing-ribs tawny ; veins pitchy, tawny at the base and along 
the fore border; poisers tawny. Length of the body 6 lines ; of the wings 
12 lines. 
Africa. 
Dasypocon rristis, Mas. 
Alter, abdomine nigro-cinereo, antennis nigris basi piceis, pedibus nigris, 
alis nigro-purpureis. 
Body deep black : head clothed with black hairs, adorned with a hoary 
covering, beset with black bristles, which form: a fringe behind the eyes : 
face and epistoma thickly armed with black spines: eyes black; fore part 
nearly flat, its facets a little larger than those elsewhere: sucker black, 
oO 
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